齿轮拨叉零件的钻M10螺纹孔夹具设计及加工工艺分析含非标8张CAD图+说明书

齿轮拨叉零件图A3

摘要
专用夹具历经岁月，仍然经久不衰，其主要原因是不规则零件的存在并且越来越多，零件的尺寸要求和公差要求也是越来越高。要想很好很快的加工零件的尺寸，并且保证零件的各项加工要求以及测量精度，专用夹具就是很好的选择。
本次毕设研究的对象是齿轮拨叉，该零件结构并不是很复杂，当形状畸形是典型的叉架类零件，该零件的作用是拨动滑动齿轮，使其和相应的齿轮进行传动，实现预期的转动速度或者转动方向等，该零件是实现转速或者转向过程中的操作零件。
本次毕设研究的主要内容是齿轮拨叉加工工艺设计，钻孔专用夹具设计。加工工艺的设计，其主要的内容有：分析工件作用、分析工件结构、分析加工面加工精度、确定进给量还有背吃刀量，计算切削速度以及加工时间等等。
通过结合任务书以及对零件图的分析，决定设计钻M10螺纹孔Z3025钻床专用夹具。其设计内容有：设计定位、夹紧方案，选择定位、夹紧元件；选择标准钻套；设计夹具体等。
关键词：齿轮拨叉；加工工艺；专用夹具；M10螺纹孔；Z3025
Abstract
Special fixtures have been around for a long time, and the main reason is the existence and increasing number of irregular parts. The dimensional requirements and tolerance requirements of parts are also increasing. Special fixtures are a good choice for thevery fast and easy processing of part sizes and thevarious machining requirements and measurement accuracy of the parts.
The object of this research is the gear shifting fork. The structure of the part is notvery complicated. When the shape is deformed, it is a typical fork-like part. The function of the part is to move the sliding gear to drive itwith the corresponding gear. To achieve the desired rotational speed or direction of rotation, etc., this part is the operating part that realizes the speed or steering process.
The main content of this research is the gear shifting process design and drilling special fixture design. The main contents of the design of the processing technology are: analyzing the action of theworkpiece, analyzing the structure of theworkpiece, analyzing the machining accuracy of the machining surface, determining the feed amount and the amount of the back-feeding knife, calculating the cutting speed and the machining time, and so on.
By combining the task book and the analysis of the part drawing, it is decided to design the special fixture for drilling the M10 threaded hole Z3025. The design contents include: design positioning, clamping scheme, selection of positioning, clamping components; selection of standard drill sleeves; design clips and so on.
Keywords: gear shift fork; machining process; special fixture; M10 threaded hole; Z3025
目录
摘要I
Abstract II
第一章绪论1
1.1机床夹具的分类及概述1
1.2机床夹具的发展及趋势2
第二章齿轮拨叉机械加工工艺规程设计3
2.1零件的工艺分析及生产类型的确定3
2.1.1零件的作用3
2.1.2零件的工艺分析3
2.1.3零件生产类型的确定4
2.2零件工艺规程设计5
2.2.1零件制造形式及毛坯的确定5
2.2.2基准的选择5
2.3选择、比较和确定加工工艺路线6
2.3.1选择加工工艺路线6
2.3.2比较加工工艺路线7
2.3.3确定加工工艺路线7
2.4加工设备、装夹夹具、加工刀具及测量量具的确定7
2.5机械加工余量的确定8
2.6确定切削用量及基本工时10
第三章钻床专用夹具的设计23
3.1问题的提出23
3.2夹具设计23
3.2.1确定定位方案，选择定位元件23
3.2.2确定夹紧方案，选择夹紧元件24
3.2.3夹具体的设计24
3.2.4钻套的选择24
3.2.5钻削力及夹紧力计算24
3.2.6定位误差分析25
结论26
致谢27
参考文献28

夹具装配图A0

齿轮拨叉毛坯图A3

定位块A3

夹紧盘A4

夹具体A1

钻模板A4

钻模夹紧块A3

过程卡

夹具设计部分

设计所包含文件

字数统计

齿轮拨叉

工序卡

说明书前三页